Air conditioner compressors commonly fail due to one particular of two problems: time and hrs of procedure or abuse. The most probably trigger of an automotive air conditioner cooling issue is no refrigerant in the technique, if the refrigerant leaks past a leaky compressor or O-ring
The compressor can fail in numerous ways. It can fail to open up, fail shorted, experience a bearing failure, or a piston failure. 1st check the compressor engagement. If the magnetic clutch is not engaging when the A/C is turned on, the issue might be a blown fuse or a wiring issue.
When troubleshooting you must often imagine, if there is no cooling issue in the cooling technique. If there is, you need a set of A/C assistance gauges.
A brief can be there due to bald bearings. The rotor damages insulation and the compressor fail to function.
If the compressor locks up mechanically and fails to operate, you will know mainly because it will excitement extremely loudly for a few seconds and might shudder right up until the thermal limiter cuts it off. If there is no acid it is ideal to replacing the compressor and that is a great program.
Commonly when a brief takes place, it is not instantly a difficult brief one particular. The compressor torque drops sharply each individual time a brief takes place. The compressor will shudder enough to take out the brief.
A clogged filter must be taken as favourable proof of some failure in the technique other than a compressor failure. Typically, it will be steel fragments out of the compressor that clogs the filter.
Mechanical wear in aged programs internally shows that it is “worn in” and requires extra torque to start out towards the technique load than can be shipped. The compressor will excitement loudly like a locked bearing for a few seconds then the thermal limiter will get rid of it.
And this, in a nutshell, is what can happen to an air conditioner compressor and what you can do about it.